| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Sepher Sapphires: A Treatise on Gematria - 'The Magical Language' - Volume 1 | 978-0-9818977-0-7 (0-9818977-0-3) | 2008 |
| Sepher Sapphires: A Treatise on Gematria - 'The Magical Language' - Volume 2 | 978-0-9818977-1-4 (0-9818977-1-1) | 2008 |